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man: update logger.1 with info on new -k option

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Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
This commit is contained in:
Joachim Wiberg 2021-06-21 23:12:54 +02:00
parent 36778bee4a
commit 82b7e2bfcb
1 changed files with 19 additions and 1 deletions
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20
man/logger.1
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@ -33,7 +33,7 @@
.Nd Send messages to system log, or a log file
.Sh SYNOPSIS
.Nm
.Op Fl chinsv
.Op Fl chiknsv
.Op Fl d Ar SD
.Op Fl f Ar FILE
.Op Fl m Ar MSGID
@ -86,6 +86,24 @@ as an alias for
.It Fl i
Log the process id of the logger process with each line
.Ql ( LOG_PID ) .
.It Fl k
Log to kernel
.Pa /dev/kmsg
if
.Pa /dev/log
doesn't exist yet. Only works on Linux systems and only if
.Fl u Ar SOCK
and
.Fl f Ar FILE
are
.Sy not used .
When
.Nm syslogd
eventually starts, it will recognize these messages, due to not having
kernel facility, and log them properly. Highly useful for userspace
scripts and applications running before
.Nm syslogd
has started. E.g., mount helpers and similar.
.It Fl m Ar MSGID
The MSGID used for the message. Requires RFC5424 support in
.Xr syslogd 8